A retro blue summer eight-piece cap is a classic headwear item with a rich history. Originally, this type of cap was worn by sailors and fishermen in the 19th century as protection from the weather at sea. The cap later became part of the uniform for British soldiers during World War I. The eight-piece cap is also worn by workers in many traditional trades. The cap was cheaper than a real felt hat and could withstand the rigors of dirty workshops and factories.

In the 1920s, the cap became popular among sports stars and came to be associated with sports. This trend continued into the 1950s and 1960s, when the cap became a symbol of youth and music culture, especially in jazz and rock and roll.